pass variable to ActionScript from JS and perform action

[knuckle05]

Hi All,

I'm really new to Flash but I'm getting by okay so far.

I've created a "seek bar" that I will be using to control my media player on my website.

Basically, I would like to pass a variable from my page to my Flash movie to tell the movie where to place the cursor.

How could I then move the cursor to another position?

So basically I'd like to know:
1) how to pass a var to ActionScript from js
2) how to move my object once said var has been received

thx

 

[billwatson]

http://www.macromedia.com/support/flash/ts/documents/set_variables.htm

scroll down to the section entitled "Using Javascript"

 

[knuckle05]

Thanks Bill,

Pretty straight forward.

Any idea how I would then be able to perform an event in my Flash movie so that I could move my cursor along my timeline according to my variable value? Thx

 

[knuckle05]

I think what I would ned to do is call the StartDrag() function???

 

[billwatson]

im not quite sure what you mean

if by moving along the timeline you mean jump to a frame then thats easy.

or do you mean the mouse cursor?

 

[oldnewbie]

If your cursor is a movie clip, then just set it's position within according to the variable...

onClipEvent(enterFrame){
this._x = _level0.my_var;
}

_level0.my_var, being the value passed. Regards,

Don't worry, if my reply is wrong, BillWatson will clean it up for me!

 

[knuckle05]

Thanks guys,

I appreciate the help.

Yes, my cursor is a movie clip and basically I just want to change the x coordinate.

I'm only using one frame in my movie since I don't need any animation.

I will try it out!!

 

[oldnewbie]

The enterFrame will constantly loop, so if your variable doen't change then an on load event would do!

onClipEvent(load){
this._x = _level0.my_var;
}

And it might be a good idea to make your movie a few frames long (5), and have a stop action. Provision so that the variable is read before the clip's position is set.
Regards,

Don't worry, if my reply is wrong, BillWatson will clean it up for me!

 

[knuckle05]

Well, I seem to have it working with no evident bugs, however there must be a logical error somewhere.

Here is my code for the OnClipEvent of my cursor (movie object)

onClipEvent (load) {
<not set yet> = &quot;&quot;;
}
onClipEvent(enterFrame){
this._x = _level0.intCurPos;
}


No errors are diplayed, but the cursor is not moving. Why is it necessary to create many frames (5) if I don't really need them? And what should I put in them?

 

[oldnewbie]

Are you testing this through the html?

Do you have a stop action(); on your 1 frame main movie?

If you add a trace action on this frame, what do you get?

trace(_level0.intCurPos);

Regards,

Don't worry, if my reply is wrong, BillWatson will clean it up for me!

 

[billwatson]

i dont know how you are loading the variables . if you are not using loadvars then that may be the problem. you are trying to set the value before its loaded. loadvars takes care of this problem for you.

 

[knuckle05]

Hi,

Here is my JS function from my HTML page which passes the var to my Flash movie

function mySetMediaPosition(thePosition){
//*******UPDATE FLASH TIMESCALE*********
document.movie.SetVariable(&quot;intCurPos&quot;, thePosition );
}

In my clip event I placed

onClipEvent(enterFrame){
trace(_level0.intCurPos);
this._x = _level0.intCurPos;
}

I do not receive any message or errors however. I'm getting close though, I can feel it. Any ideas?

 

[billwatson]

I think it can only be a path problem

is the clip nested at all?

 

[knuckle05]

The clip is not nested,

What should I see when I use the Trace function? Should I be getting a popup like in JavaScript?

 

[knuckle05]

could I email you my .fla file???

 

[billwatson]

hp_sauce46@yahoo.com

 

[oldnewbie]

The trace action should open up the Flash output window, and you should see your variable's value if it was passed, or &quot;undefined&quot;, if it wasn't. Regards,

Don't worry, if my reply is wrong, BillWatson will clean it up for me!